JPS5845928A - Plastic sheet causing diffused reflection for light - Google Patents
Plastic sheet causing diffused reflection for lightInfo
- Publication number
- JPS5845928A JPS5845928A JP56144853A JP14485381A JPS5845928A JP S5845928 A JPS5845928 A JP S5845928A JP 56144853 A JP56144853 A JP 56144853A JP 14485381 A JP14485381 A JP 14485381A JP S5845928 A JPS5845928 A JP S5845928A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- light
- diffused reflection
- plastic sheet
- cooling roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
- B29C48/9155—Pressure rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
この発明はプラスチックフィルムやシート等の一面に光
線乱反射−を形成したシー)K*シ、lI!に詳しくは
エキストルーツ1ン法によル、熱fIs融樹脂を冷却固
化する九めの冷却ロールの表面を粗i1化することによ
多光線乱反射膜層(マット化層)を連続的に形成した彼
、この乱反射膜階上に金l/4轡を蒸着した光線乱反射
面着シートを得ようとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is based on the invention in which diffused reflection of light is formed on one surface of a plastic film or sheet. In detail, a multi-ray diffuse reflection film layer (matte layer) is continuously formed by roughening the surface of the ninth cooling roll that cools and solidifies the hot fIs molten resin using the extra roots method. He then attempted to obtain a light diffused reflection sheet with gold 1/4 layer deposited on top of this diffused reflection film.
従来の長尺基材の一面に乱反射膜層を形成する方法とし
ては、たとえIdgI粒を混合した樹脂を溶剤に溶かし
グラビアコート法、シルクスクリーン法等によシ塗着プ
ートし熱乾燥して微細粗面の乱反射展層を形成していた
。Conventional methods for forming a diffusely reflective film layer on one surface of a long substrate include dissolving a resin mixed with IdgI particles in a solvent, applying it using a gravure coating method, a silk screen method, etc., and drying it with heat to form a fine layer. A diffusely reflective layer was formed on the rough surface.
しかしながら、これら従来方法では前記版胴に樹脂溶液
が付着し中すく版胴目づま夛やスクリーン目づitが生
じて均一なる微細粗面が得られず、また製品に溶−剤が
残留しこの製品の加工時やミその二次製“品の製造時ま
たは費用時にそれぞれ周囲に有接公害を与えるという欠
点と、溶剛KIN−解しない樹脂では夾現できないとい
う大きな欠点があった。tたこの他に時間と共に前記溶
剤に溶かした樹脂の濃度が溶剤の放散によ・)大と一つ
、しまい、前、。1Ili度管理や8禦緒困難を極め、
この糧′工程の隘路となっていたという欠点があった。However, in these conventional methods, the resin solution adheres to the plate cylinder, causing clogging of the plate cylinder and screen clogging, making it impossible to obtain a uniform finely rough surface.Also, the solvent remains on the product, resulting in this problem. It has the drawback that it causes direct pollution to the surroundings during the processing of the product, the manufacturing of its secondary products, and the cost, and the major drawback is that it cannot be avoided with resins that do not dissolve in hot water. In addition, over time, the concentration of the resin dissolved in the solvent increases due to the dissipation of the solvent.
The drawback was that it was a bottleneck in the food production process.
またこの他にサンドブラスト法やエンボス加工勢の機械
的物理的方法4考えら−れるが、これらの方法では、フ
ィルムの材脣の選択がシビャであシ、首た、フィルムの
厚みもある5iFIL−以上厚くしなければならないと
いう欠点がある。さらに仁の他にエツチング法などの化
学的方法もあるが、フィルムの材質の選択がシビャであ
シ、処理彼の洗浄乾燥が大変であるという欠点があった
。In addition, there are other mechanical and physical methods such as sandblasting and embossing, but these methods require severe selection of film material length, neck length, and film thickness. It has the disadvantage that it must be made thicker. Furthermore, there are other chemical methods such as etching, but these have the drawbacks that the selection of film materials is difficult and cleaning and drying during processing is difficult.
さらに合成樹脂フィルムは一般に腰が弱く所要個所から
引裂く場合、引懐き方向に逃けてシワが寄)切断が困難
である。Furthermore, synthetic resin films are generally weak and difficult to cut when they are torn from a desired point, as they tend to deviate in the direction of the stretch and wrinkle.
ま、た、一般に合成樹脂フィルムは物性向上のため延伸
処理を行ってあり、特に二軸延伸フィルムでは腰の強化
、透明度の向上、バリヤ性の向上、熱収縮性の向上部が
計られて#)シ、二軸延伸処理を施したものは未延伸処
理のものよシ更に引裂きが困難となシ、少しばがルの切
口ては引裂けず、裂けても両軸に延伸されているため引
裂方向が一定しない。勢にポリエステル、ポリオレフィ
ン尋の機械的安定性、寸法安定性゛ の高い合成樹脂フ
ィルムは刃物を用いて切断しない限り手での切断は不可
能でを・る。Generally, synthetic resin films are stretched to improve their physical properties, and biaxially stretched films in particular are designed to strengthen stiffness, improve transparency, improve barrier properties, and improve heat shrinkability. ) Biaxially stretched materials are even more difficult to tear than non-stretched materials; even if the edges are slightly bent, they will not tear, and even if they are torn, they are stretched in both axes. The tear direction is inconsistent. Synthetic resin films such as polyester and polyolefin, which have high mechanical and dimensional stability, cannot be cut by hand unless they are cut with a knife.
この発明は前記従来例による各種欠点【すべて除去する
ためになされたもので、この発明の第10%像とすると
ころは、エキストルージョン法によって熱溶融樹脂を表
向が微細粗面の冷却ロールを介してシート状に1化する
ことによ珈、表面に微細粗面の光線乱反射面を形成した
ことを41I黴とする光線乱反射プラスチックシートを
提供するにある。This invention was made in order to eliminate all of the various drawbacks of the conventional example, and the 10th aspect of this invention is to transfer hot molten resin by an extrusion method to a cooling roll with a finely rough surface. The object of the present invention is to provide a light ray diffused reflection plastic sheet which is formed by forming a light ray diffused reflection surface with a finely roughened surface on the surface by forming a 41I mold into a sheet shape.
またこの発明の第2の特徴とするところは、前記餉1の
特徴に加えてさらに前記シートをテンダー機構など(よ
シ、縦横方向に延伸したことを%徽とする光線乱反射プ
ラスチックシートを提供することにある。A second feature of the present invention is to provide a light ray-diffusion-reflecting plastic sheet in which, in addition to the features of the sheet 1, the sheet is stretched in the vertical and horizontal directions using a tender mechanism or the like. There is a particular thing.
さらにまたこの発明の第3の特徴とするところは、前記
鮪1tたは第2の%像に加えて前記゛光線乱反射プラス
チックシートの非乱反射面に紙を貼着することによシ引
裂きを容謳となしたことを特徴とすゐ光線乱反射プラス
チックシートを提供することにある。 −以下
この発明を図示の実施例について詳細に説明する。Furthermore, the third feature of the present invention is that in addition to the tuna 1t or second percent image, paper is pasted on the non-diffuse reflective surface of the light ray diffusely reflective plastic sheet to prevent tearing. An object of the present invention is to provide a plastic sheet with diffused reflection of light rays, which is characterized by the following characteristics. - Hereinafter, the present invention will be explained in detail with reference to the illustrated embodiments.
第1図はこの発明の集施態様を示し、同図中1はホッパ
ーで加熱溶融性樹脂例えばポリオレフィン類やポリ塩化
ビニール、ポリエステルなどのペレットの投入口1aを
有している。FIG. 1 shows an embodiment of the present invention. In the figure, 1 is a hopper having an input port 1a for pellets of heat-melting resin such as polyolefins, polyvinyl chloride, polyester, etc.
雪は押出機で前記樹脂ペレットを加熱溶融し、下段のT
ダ、イ畠に押出し供給するものである。Snow is made by heating and melting the resin pellets in an extruder, and
It is extruded and supplied to Da and I Hatake.
そして上記Tダイ3の長尺スリット3aから一定の厚み
でしかも一定の幅でフィルム状に押し出された溶融樹脂
カーテン部4−が形成されるようにする。そして圧力ロ
ール・の、表面に所定の圧力で転接するように設け−ら
れた表面が極微細粗面の冷却ロール8が用意されている
。Then, a molten resin curtain portion 4- is extruded from the elongated slit 3a of the T-die 3 in the form of a film with a constant thickness and a constant width. A cooling roll 8 having a very fine rough surface is provided so as to be in rolling contact with the surface of the pressure roll at a predetermined pressure.
そして前記済融樹脂カーテン部4を圧力ロール60表向
と前記冷却ロール6との間Knんぺんなく落人さ、せる
ととによシ、前記溶融樹脂表面が冷却ロール魯の微細粗
面に応じて冷却固化し表面微細粗面Bt有する乱反射シ
ートA1すなわちこの発明によるシート製品9が得られ
る。Then, the molten resin curtain portion 4 is smoothly placed between the pressure roll 60 and the cooling roll 6, so that the molten resin surface becomes the finely rough surface of the cooling roll. Accordingly, it is cooled and solidified to obtain a diffused reflection sheet A1 having a finely roughened surface Bt, that is, a sheet product 9 according to the present invention.
このシート製品9は入射光が微細凹凸のため白く輝くよ
うな感じで美しく乱反射する従来見られない本件独婦の
きめ細かい光線乱反射包装装飾紙弊が得られる。This sheet product 9 has fine irregularities that cause the incident light to reflect beautifully and diffusely with a white shining feeling, making it possible to obtain the finely-grained light diffused reflection packaging decorative paper of the present single woman, which has never been seen before.
を良、この発明による第2の%像の実施例としては前記
微細粗面Bを有するシートAを予じめテンダ〒木などの
周知の手段(よシ、縦横方向Km伸したので、薄肉でも
−の強い界線乱反射プラスチックシートが得られる。As an example of the second percent image according to the present invention, the sheet A having the finely roughened surface B was pre-tendered by a well-known means such as wood (by a method such as wood), so that it could be stretched by Km in the vertical and horizontal directions. - A plastic sheet with strong field line diffuse reflection can be obtained.
さらに、との発明による第3の%微とする実施例として
は、前記光線乱反射プラスチとクシート製品9の、悲乱
反射面eA、に&打紙DtJi着剤やホットメルト5.
ラミネート級着締岬♀周知手段で貼着し九ので、引裂き
が容Aな光線乱反射、シートが得られる。Furthermore, as a third embodiment of the invention, in which the diffused reflection surface eA of the light ray diffused reflection plastic sheet product 9 is applied to the diffused reflection surface eA, &
Since the laminate-grade tightening cape is attached using well-known means, a sheet with diffused reflection of light that is resistant to tearing can be obtained.
以上述べたよ、うにこの発明の゛第1の特徴とする実施
例によれば、エキストルージョン法にょつて熱溶融樹脂
を表面が微細粗面の冷却ロールを介してシート状に固化
するととにより1表面に微細粗面0光線乱反射を形成し
たので、前記従来例のよう表溶剤溶解樹脂コート法に比
べて溶剤を使用しないので冷却ロールの目づt、bが生
じ表い。As described above, according to the first embodiment of the present invention, a hot molten resin is solidified into a sheet through a cooling roll with a finely roughened surface by the extrusion method, and one surface of the resin is solidified into a sheet. Since zero diffuse reflection of light rays is formed on the finely rough surface, no solvent is used compared to the surface solvent-dissolved resin coating method as in the conventional example, so that scratches t and b on the cooling roll occur.
仁の他に本発明によれば、従来のプラスチックシート成
膜工程中の冷却ロール表面を微細粗面とするだけで溶剤
を使用しないので溶剤放散による資源の無駄や周囲に与
える有機公害が全くない。しかもこの発明では加熱溶崩
した樹脂による光線乱反射粗面を強固に形成できるので
、溶剤に溶解しない樹脂でも集塊でき、さらに溶解樹脂
の―度管理が不要で、マイコン等による溶融樹脂の粘度
管理や冷却ロールの温度と回転速度をそれぞれ最適条件
で自動化でき均一製品を安価に多量製造できるという工
業的に新規かつ有用な効果を有する。また前記サンドブ
ラストやエンボス加工などの機械的方法によるものに比
し、本発明ではフィルムの材資や厚みの選択O自由度が
大となり安価なフィルムを使用で自経済効果が大きい。In addition, according to the present invention, the cooling roll surface used in the conventional plastic sheet film forming process is simply made into a finely roughened surface and no solvent is used, so there is no wastage of resources due to solvent dissipation and no organic pollution to the surrounding area. . Moreover, in this invention, it is possible to firmly form a light-diffusion-reflecting rough surface made of heat-melted resin, so even resins that do not dissolve in solvents can be agglomerated, and there is no need to manage the viscosity of the molten resin using a microcomputer, etc. It has a new and useful effect industrially in that it can automate the temperature and rotation speed of the cooling roll and the cooling roll under optimal conditions, allowing uniform products to be produced in large quantities at low cost. Furthermore, compared to mechanical methods such as sandblasting and embossing, the present invention has a greater degree of freedom in selecting the material and thickness of the film, resulting in a large economical effect by using an inexpensive film.
さらにエツチング等の化学的手段によるものに比し、洗
浄、乾燥などにaするエネルギーや水、薬剤等が不要で
アルカラ、経済的であ抄、省エネ、省資源的であるとい
うような効果がある。Furthermore, compared to chemical methods such as etching, it does not require energy, water, chemicals, etc. for cleaning, drying, etc., making it economical, energy saving, and resource saving. .
を九このほかにこの発明の第2の%黴とするll!麹例
によれば、前記シー)?テンダー機構などにより1縦横
方向に砥伸したので、前記の効果に加えて合成樹脂フィ
ルムに物性向上とシート全体としての腰の強化、透明度
の向上、バリヤ性の向上、熱収縮性の向上等が計られ、
少しtz*ao切口で轄引裂けず、裂けても両軸に嬌伸
されている九め引裂方向が一足せず、刃物を用いて切断
しない限シ手での切断は不可能である勢の効果を有する
。In addition to this, the second percent mold of this invention is ll! According to the koji example, the above-mentioned sea)? Since it is abraded in one vertical and horizontal direction using a tender mechanism, in addition to the above effects, the synthetic resin film has improved physical properties, strengthened the stiffness of the sheet as a whole, improved transparency, improved barrier properties, improved heat shrinkability, etc. measured,
A slight tz*ao cut will not tear it, and even if it does tear, the direction of the nine-way tear extending from both shafts will not add up, and it will be impossible to cut it by hand unless it is cut with a knife. have an effect.
さらKt九この発明の第3の特徴とする実施例によれば
、前記第1壕良は第2の特徴に加えて前記光at反射プ
ヲスチツクシートの非乱反射面に紙を貼着したのでシー
ト全体として腰が強くな)所要個所から引裂く場合、引
裂き方向に逃けてシワが寄るととがなく切断Klシ、所
要個所から容易に所定方向に引裂〈ことができる勢の効
果を有する亀のである。Furthermore, according to a third characteristic embodiment of the present invention, in addition to the second characteristic, the first trench has a paper attached to the non-diffuse reflective surface of the light-reflecting plastic sheet. (The sheet as a whole is strong) When tearing from a desired point, the sheet can be easily torn in the desired direction from the desired point. It's a turtle.
図はいずれもこの発明の実施例を示すもので、第1図は
この発明の実施msを示す構成図、第2図はこの発明に
よる製品の一例を示す拡大断面図である。
A・・・先締乱反射シート、B・・・li!!面微細粗
面、D・・・裏打紙、1・・・ホッパー、=1hmaペ
レットの投入口、8・・・押出機、l−Tダイ、1m・
−ヌリット、4・・・溶融樹脂カーテン部、#−・・圧
力ロール、7・・・ティクアップドラム、・・・・冷却
ロール、・・・・シート製品。
第2図The drawings all show embodiments of the present invention; FIG. 1 is a block diagram showing an embodiment of the invention, and FIG. 2 is an enlarged sectional view showing an example of a product according to the invention. A...Top-tight reflective sheet, B...li! ! Surface fine rough surface, D... Backing paper, 1... Hopper, = 1 hma pellet input port, 8... Extruder, l-T die, 1 m.
- Nulit, 4... Molten resin curtain portion, #-... Pressure roll, 7... Tick-up drum,... Cooling roll,... Sheet product. Figure 2
Claims (1)
面が微細粗面の冷却ロールを介してシート状に固化する
ことによシ、表面に微細粗面の光線乱反射面を形成した
ことを特徴とする光−乱反射プラスチックシートシ (2)前記特許請求のasst番目に記載のものにおい
て、前記シートをテンダ一様構亀どによシ、縦′横方向
に延伸したことを特徴とする光線乱反射プラスチックシ
ート。 (5)前記特許請求の範囲第1項を大は第2項記載のも
のにおいて、前配光−乱反射プラスチックシートの非乱
反射面に紙を貼着したことをI!#像とする光線乱反射
グラスチックシート。[Claims] ° (1) By solidifying the hot molten resin into a sheet form through a cooling roll with a finely roughened surface using the extrusion method, a light scattering reflection surface with a finely roughened surface is formed on the surface. (2) A light-diffusing reflective plastic sheet according to the asst item of the above claim, characterized in that the sheet is stretched in the longitudinal and lateral directions with a uniform tender structure. A plastic sheet with diffused reflection of light. (5) In the item described in claim 2, the above-mentioned claim 1 is extended by the fact that paper is pasted on the non-diffuse reflection surface of the front light distribution/diffuse reflection plastic sheet. # A glass sheet with diffused reflection of light that can be used as an image.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56144853A JPS5845928A (en) | 1981-09-14 | 1981-09-14 | Plastic sheet causing diffused reflection for light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56144853A JPS5845928A (en) | 1981-09-14 | 1981-09-14 | Plastic sheet causing diffused reflection for light |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5845928A true JPS5845928A (en) | 1983-03-17 |
Family
ID=15371931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56144853A Pending JPS5845928A (en) | 1981-09-14 | 1981-09-14 | Plastic sheet causing diffused reflection for light |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5845928A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006071547A1 (en) * | 2004-12-23 | 2006-07-06 | 3M Innovative Properties Company | Uniaxially oriented article having a structured surface |
WO2006071539A1 (en) * | 2004-12-23 | 2006-07-06 | 3M Innovative Properties Company | Roll of a uniaxially oriented article having a structured surface |
WO2006071553A1 (en) * | 2004-12-23 | 2006-07-06 | 3M Innovative Properties Company | Uniaxially oriented articles having structured surface |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4832958A (en) * | 1971-09-03 | 1973-05-04 | ||
JPS4836252A (en) * | 1971-07-27 | 1973-05-28 |
-
1981
- 1981-09-14 JP JP56144853A patent/JPS5845928A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4836252A (en) * | 1971-07-27 | 1973-05-28 | ||
JPS4832958A (en) * | 1971-09-03 | 1973-05-04 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006071547A1 (en) * | 2004-12-23 | 2006-07-06 | 3M Innovative Properties Company | Uniaxially oriented article having a structured surface |
WO2006071539A1 (en) * | 2004-12-23 | 2006-07-06 | 3M Innovative Properties Company | Roll of a uniaxially oriented article having a structured surface |
WO2006071553A1 (en) * | 2004-12-23 | 2006-07-06 | 3M Innovative Properties Company | Uniaxially oriented articles having structured surface |
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